We have the problem that in some cases Drag&Drop will be startet even if the left mouse button isn't pressed any more.
We solve this problem by adding following check in the methode: TElTreeView.IntMouseMove
  if not Dragging then
  begin
    if FPressed then
changed to
  if not Dragging then
  begin
    if FPressed and ((GetKeyState(VK_LBUTTON) and $8000) = $8000) then
            
                      
      
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